Hi,
Judging by the pictures i would be suprised if this where a few decades old. The wood has no sign of age, patina, cracks, real handlingmarks or even markings of old tools (to make the mace)..
The iron is non consistent in its patina/corossion and the spikes look like they where aged and afterwards hammered into the fresh wood (hence all the curled spiked points).
The blade on top might be the only old thing about it.. :/
Still a nice decorative piece in my eyes, it would surely make a display with some armour
